I have just bought a Merc CLC 220 cdi se 2009 auto panoramic. GREAT ! except it has no Sat Nav. My trusty old Saab had ! So I thought I would treat myself, should get one for a hundred or so ? Then I realized it would sit on the dash and have a trailing wire how naff ! ? So I go to amazon and ebay. Yes ! there are some that fit in a CLC. for £400 ! Then I had to find someone who could fit it. Only he says make sure it does not come from China. . . Why are they naff ?? He wants to sell me one for £800 plus £100 fitting. Is he right, only I'm pretty broke now, Any advice ??